A steamship, often referred to as a steamer, is a type of steam-powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines that typically move (turn) propellers or paddlewheels. The first steamships came into practical usage during the early 19th century; however, there were exceptions that came before. Steamships usually use the prefix designations of "PS" for paddle steamer or "SS" for screw steamer. As paddle steamers became less common, "SS" is incorrectly assumed by many to stand for "steamship". Ships powered by internal combustion engines use a prefix such as "MV" for motor vessel, so it is not correct to use "SS" for most modern vessels.
SS Carnatic was a British steamship built in 1862-63 by Samuda Brothers at Cubitt Town on the Isle of Dogs, London, for the Peninsular and Oriental Steam Navigation Company (P&O). She operated on the Suez to Bombay run in the last years before the Suez Canal was opened. This route gave a fast, steamship-operated route from Britain to India, connecting with similar steamships running through the Mediterranean to Alexandria, with an overland crossing to Suez. The alternative was to sail round the Cape of Good Hope, a distance at which steam ships were not, in the early 1860s, sufficiently economical to be commercially competitive with sail.
A compound steam engine unit is a type of steam engine where steam is expanded in two or more stages. A typical arrangement for a compound engine is that the steam is first expanded in a high-pressure (HP) cylinder, then having given up heat and losing pressure, it exhausts directly into one or more larger-volume low-pressure (LP) cylinders. Multiple-expansion engines employ additional cylinders, of progressively lower pressure, to extract further energy from the steam.
The Royal Navy's Victoria class of the 1880s was the first class of ironclad warship which used triple expansion steam engines, previous classes having used compound engines.
HMS Thunderer was one of two Devastation-class ironclad turret ships built for the Royal Navy in the 1870s. She suffered two serious accidents before the decade was out and gained a reputation as an unlucky ship for several years afterward. The ship was assigned to the Mediterranean Fleet in 1878 and was reduced to reserve in 1881 before being recommissioned in 1885. Thunderer returned home in 1887 and was again placed in reserve. She rejoined the Mediterranean Fleet in 1891, but was forced to return to the UK by boiler problems the following year. The ship became a coast guard ship in Wales in 1895 and was again placed in reserve in 1900. Thunderer was taken out of service in 1907 and sold for scrap in 1909.
The MV Cartela is an excursion vessel operating on the Derwent River in Hobart, Tasmania, Australia. She is now Australia's oldest continuously-licensed passenger vessel, although there are several older vessels still in service that have been restored after lengthy periods in dereliction.
SS William A. Irvin is a lake freighter, named for William A. Irvin, that sailed as a bulk freighter on the Great Lakes as part US Steel's lake fleet. She was flagship of the company fleet from her launch in the depths of the Great Depression in 1938 until 1975 and then was a general workhorse of the fleet until her retirement in 1978.
HMS Swindon was a Hunt-class minesweeper of the Aberdare sub-class built for the Royal Navy during World War I. She was not finished in time to participate in the First World War and was sold into civilian service in 1921.
SS Sirius was a wooden-hulled sidewheel steamship built in 1837 by Robert Menzies & Sons of Leith, Scotland for the London-Cork route operated by the Saint George Steam Packet Company. The next year, she opened transatlantic steam passenger service when she was chartered for two voyages by the British and American Steam Navigation Company. By arriving in New York a day ahead of the Great Western, she is usually listed as the first holder of the Blue Riband, although the term was not used until decades later.
SS American was a steel-hulled, single propeller cargo ship built at Chester, Pennsylvania, by the Delaware River Iron Shipbuilding and Engine Works for the American-Hawaiian Steamship Company and the Hawaiian sugar trade. During World War I service for the United States Navy, the ship was known as USS American (ID-2292). Late in her career for American-Hawaiian, she was renamed SS Honolulan.
A "Scotch" marine boiler is a design of steam boiler best known for its use on ships.
A marine steam engine is a steam engine that is used to power a ship or boat. This article deals mainly with marine steam engines of the reciprocating type, which were in use from the inception of the steamboat in the early 19th century to their last years of large-scale manufacture during World War II. Reciprocating steam engines were progressively replaced in marine applications during the 20th century by steam turbines and marine diesel engines.
Johannes C Russ was a coaster that was built in 1921 by Stettiner Oderwerke AG, Stettin for German owners. In 1942 she was wrecked off Sweden but was salvaged and returned to service. She was seized by the Allies in May 1945 at Flensburg, passed to the Ministry of War Transport (MoWT) and renamed Empire Connaught. In 1946, she was allocated to the Soviet Government and renamed Nemirovich Danchenko. She served until 1971, when she was scrapped.
SS Stirling Castle was built by J.Elder & Co in Glasgow in 1882 and entered service with Thomas Skinner & Co., London in the tea trade from China. At 418.6 ft with a 50 ft beam, she measured 4,826 tons gross and 2,951 tons nett. She had a compound engine of 1500 horsepower and boilers which operated at 100 pounds per square inch (690 kPa).
Alfred Holt was a British engineer, ship owner and merchant. He lived at Crofton, Sudley Road, Aigburth in Liverpool, England. Holt is credited with establishing the long distance steamship by developing a type that replaced sailing clippers on the route from Britain to China.
SS Agamemnon was one of the first successful long-distance merchant steamships. She was built in 1865 to trade between Britain and China, and competed with tea clippers before and after the opening of the Suez Canal in 1869. She brought together three improvements in steamship design: higher boiler pressure, an efficient and compact compound steam engine, and a hull form with modest power requirements.
Iosco was a Great Lakes freighter that served on the Great Lakes from her construction in 1891 to her foundering on September 2, 1905, when she and her tow, the schooner barge Olive Jeanette sank on Lake Superior. While Olive Jeanette's wreck was located in over 300 feet (91 m) of water about eight miles (13 km) off the Huron Islands in the 1990s, Iosco's wreck has not yet been found.
Binngarra was a ferry operated by Port Jackson & Manly Steamship Company on the Manly service. Launched in 1905, she was the first of six similar vessels built for the company–the Binngarra class—the success of which saw three of her sister vessels serving through to the 1970s and 1980s.
SS Otaki was a New Zealand Shipping Company refrigerated cargo steamship that was built in Scotland in 1908 and sunk by a German merchant raider in 1917.
SS Vespasian was a steel-hulled cargo steamship that was built in Sunderland in 1887 as Eastern Prince, renamed Vespasian in 1908 and scrapped in Newcastle upon Tyne in 1914. In 1908 the Parsons Marine Steam Turbine Company converted her to steam turbine propulsion. She is notable as the first ship in the World whose turbines drove her propeller by reduction gearing instead of direct drive.
